Details
| Original language | English |
|---|---|
| Article number | 2084 |
| Journal | Sensors (Switzerland) |
| Volume | 19 |
| Issue number | 9 |
| Publication status | Published - 1 May 2019 |
Abstract
In order to provide timely, reliable, and comprehensive data for the maintenance of highly stressed geometries in sheet-bulk metal forming tools, this article features a possible setup by combining a 3D measuring endoscope with a two-stage kinematic. The measurement principle is based on the projection of structured light, allowing time-effective measurements of larger areas. To obtain data of proper quality, several hundred measurements are performed which then have to be registered and finally merged into one single point cloud. Factors such as heavy, unwieldy specimens affecting precise alignment. The rotational axes are therefore possibly misaligned and the kinematics and the hand-eye transformation remain uncalibrated. By the use of computer-aided design (CAD) data, registration can be improved, allowing a detailed examination of local features like gear geometries while reducing the sensitivity to detect shape deviations.
Keywords
- Endoscopy, Fringe projection, Maintenance, Metrology, Registration
ASJC Scopus subject areas
- Chemistry(all)
- Analytical Chemistry
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Physics and Astronomy(all)
- Instrumentation
- Engineering(all)
- Electrical and Electronic Engineering
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In: Sensors (Switzerland), Vol. 19, No. 9, 2084, 01.05.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Metal forming tool monitoring based on a 3D measuring endoscope using CAD assisted registration
AU - Hinz, Lennart
AU - Kästner, Markus
AU - Reithmeier, Eduard
N1 - Funding information: This work was funded by the German Research Foundation (DFG), project B6 “Endoscopic geometry inspection” within the Collaborative Research Center (CRC) / TR 73.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - In order to provide timely, reliable, and comprehensive data for the maintenance of highly stressed geometries in sheet-bulk metal forming tools, this article features a possible setup by combining a 3D measuring endoscope with a two-stage kinematic. The measurement principle is based on the projection of structured light, allowing time-effective measurements of larger areas. To obtain data of proper quality, several hundred measurements are performed which then have to be registered and finally merged into one single point cloud. Factors such as heavy, unwieldy specimens affecting precise alignment. The rotational axes are therefore possibly misaligned and the kinematics and the hand-eye transformation remain uncalibrated. By the use of computer-aided design (CAD) data, registration can be improved, allowing a detailed examination of local features like gear geometries while reducing the sensitivity to detect shape deviations.
AB - In order to provide timely, reliable, and comprehensive data for the maintenance of highly stressed geometries in sheet-bulk metal forming tools, this article features a possible setup by combining a 3D measuring endoscope with a two-stage kinematic. The measurement principle is based on the projection of structured light, allowing time-effective measurements of larger areas. To obtain data of proper quality, several hundred measurements are performed which then have to be registered and finally merged into one single point cloud. Factors such as heavy, unwieldy specimens affecting precise alignment. The rotational axes are therefore possibly misaligned and the kinematics and the hand-eye transformation remain uncalibrated. By the use of computer-aided design (CAD) data, registration can be improved, allowing a detailed examination of local features like gear geometries while reducing the sensitivity to detect shape deviations.
KW - Endoscopy
KW - Fringe projection
KW - Maintenance
KW - Metrology
KW - Registration
UR - http://www.scopus.com/inward/record.url?scp=85065663616&partnerID=8YFLogxK
U2 - 10.3390/s19092084
DO - 10.3390/s19092084
M3 - Article
C2 - 31060318
AN - SCOPUS:85065663616
VL - 19
JO - Sensors (Switzerland)
JF - Sensors (Switzerland)
SN - 1424-8220
IS - 9
M1 - 2084
ER -